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@@ -27,13 +27,16 @@ struct SynICState {
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CPUState *cs;
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- bool enabled;
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+ bool sctl_enabled;
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hwaddr msg_page_addr;
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hwaddr event_page_addr;
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MemoryRegion msg_page_mr;
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MemoryRegion event_page_mr;
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struct hyperv_message_page *msg_page;
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struct hyperv_event_flags_page *event_page;
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+
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+ QemuMutex sint_routes_mutex;
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+ QLIST_HEAD(, HvSintRoute) sint_routes;
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};
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#define TYPE_SYNIC "hyperv-synic"
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@@ -51,11 +54,11 @@ static SynICState *get_synic(CPUState *cs)
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return SYNIC(object_resolve_path_component(OBJECT(cs), "synic"));
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}
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-static void synic_update(SynICState *synic, bool enable,
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+static void synic_update(SynICState *synic, bool sctl_enable,
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hwaddr msg_page_addr, hwaddr event_page_addr)
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{
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- synic->enabled = enable;
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+ synic->sctl_enabled = sctl_enable;
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if (synic->msg_page_addr != msg_page_addr) {
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if (synic->msg_page_addr) {
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memory_region_del_subregion(get_system_memory(),
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@@ -80,7 +83,7 @@ static void synic_update(SynICState *synic, bool enable,
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}
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}
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-void hyperv_synic_update(CPUState *cs, bool enable,
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+void hyperv_synic_update(CPUState *cs, bool sctl_enable,
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hwaddr msg_page_addr, hwaddr event_page_addr)
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{
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SynICState *synic = get_synic(cs);
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@@ -89,7 +92,7 @@ void hyperv_synic_update(CPUState *cs, bool enable,
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return;
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}
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- synic_update(synic, enable, msg_page_addr, event_page_addr);
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+ synic_update(synic, sctl_enable, msg_page_addr, event_page_addr);
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}
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static void synic_realize(DeviceState *dev, Error **errp)
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@@ -110,16 +113,20 @@ static void synic_realize(DeviceState *dev, Error **errp)
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sizeof(*synic->event_page), &error_abort);
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synic->msg_page = memory_region_get_ram_ptr(&synic->msg_page_mr);
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synic->event_page = memory_region_get_ram_ptr(&synic->event_page_mr);
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+ qemu_mutex_init(&synic->sint_routes_mutex);
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+ QLIST_INIT(&synic->sint_routes);
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g_free(msgp_name);
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g_free(eventp_name);
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}
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+
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static void synic_reset(DeviceState *dev)
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{
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SynICState *synic = SYNIC(dev);
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memset(synic->msg_page, 0, sizeof(*synic->msg_page));
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memset(synic->event_page, 0, sizeof(*synic->event_page));
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synic_update(synic, false, 0, 0);
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+ assert(QLIST_EMPTY(&synic->sint_routes));
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}
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static void synic_class_init(ObjectClass *klass, void *data)
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@@ -214,6 +221,7 @@ struct HvSintRoute {
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HvSintStagedMessage *staged_msg;
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unsigned refcount;
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+ QLIST_ENTRY(HvSintRoute) link;
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};
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static CPUState *hyperv_find_vcpu(uint32_t vp_index)
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@@ -259,7 +267,7 @@ static void cpu_post_msg(CPUState *cs, run_on_cpu_data data)
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assert(staged_msg->state == HV_STAGED_MSG_BUSY);
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- if (!synic->enabled || !synic->msg_page_addr) {
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+ if (!synic->msg_page_addr) {
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staged_msg->status = -ENXIO;
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goto posted;
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}
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@@ -343,7 +351,7 @@ int hyperv_set_event_flag(HvSintRoute *sint_route, unsigned eventno)
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if (eventno > HV_EVENT_FLAGS_COUNT) {
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return -EINVAL;
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}
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- if (!synic->enabled || !synic->event_page_addr) {
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+ if (!synic->sctl_enabled || !synic->event_page_addr) {
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return -ENXIO;
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}
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@@ -364,11 +372,12 @@ int hyperv_set_event_flag(HvSintRoute *sint_route, unsigned eventno)
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HvSintRoute *hyperv_sint_route_new(uint32_t vp_index, uint32_t sint,
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HvSintMsgCb cb, void *cb_data)
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{
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- HvSintRoute *sint_route;
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- EventNotifier *ack_notifier;
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+ HvSintRoute *sint_route = NULL;
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+ EventNotifier *ack_notifier = NULL;
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int r, gsi;
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CPUState *cs;
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SynICState *synic;
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+ bool ack_event_initialized = false;
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cs = hyperv_find_vcpu(vp_index);
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if (!cs) {
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@@ -381,57 +390,77 @@ HvSintRoute *hyperv_sint_route_new(uint32_t vp_index, uint32_t sint,
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}
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sint_route = g_new0(HvSintRoute, 1);
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- r = event_notifier_init(&sint_route->sint_set_notifier, false);
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- if (r) {
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- goto err;
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+ if (!sint_route) {
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+ return NULL;
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}
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+ sint_route->synic = synic;
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+ sint_route->sint = sint;
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+ sint_route->refcount = 1;
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ack_notifier = cb ? &sint_route->sint_ack_notifier : NULL;
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if (ack_notifier) {
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sint_route->staged_msg = g_new0(HvSintStagedMessage, 1);
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+ if (!sint_route->staged_msg) {
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+ goto cleanup_err_sint;
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+ }
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sint_route->staged_msg->cb = cb;
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sint_route->staged_msg->cb_data = cb_data;
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r = event_notifier_init(ack_notifier, false);
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if (r) {
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- goto err_sint_set_notifier;
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+ goto cleanup_err_sint;
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}
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-
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event_notifier_set_handler(ack_notifier, sint_ack_handler);
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+ ack_event_initialized = true;
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+ }
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+
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+ /* See if we are done or we need to setup a GSI for this SintRoute */
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+ if (!synic->sctl_enabled) {
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+ goto cleanup;
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+ }
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+
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+ /* We need to setup a GSI for this SintRoute */
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+ r = event_notifier_init(&sint_route->sint_set_notifier, false);
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+ if (r) {
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+ goto cleanup_err_sint;
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}
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gsi = kvm_irqchip_add_hv_sint_route(kvm_state, vp_index, sint);
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if (gsi < 0) {
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- goto err_gsi;
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+ goto cleanup_err_sint_notifier;
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}
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r = kvm_irqchip_add_irqfd_notifier_gsi(kvm_state,
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&sint_route->sint_set_notifier,
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ack_notifier, gsi);
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if (r) {
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- goto err_irqfd;
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+ goto cleanup_err_irqfd;
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}
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sint_route->gsi = gsi;
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- sint_route->synic = synic;
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- sint_route->sint = sint;
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- sint_route->refcount = 1;
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-
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+cleanup:
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+ qemu_mutex_lock(&synic->sint_routes_mutex);
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+ QLIST_INSERT_HEAD(&synic->sint_routes, sint_route, link);
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+ qemu_mutex_unlock(&synic->sint_routes_mutex);
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return sint_route;
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-err_irqfd:
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+cleanup_err_irqfd:
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kvm_irqchip_release_virq(kvm_state, gsi);
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-err_gsi:
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+
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+cleanup_err_sint_notifier:
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+ event_notifier_cleanup(&sint_route->sint_set_notifier);
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+
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+cleanup_err_sint:
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if (ack_notifier) {
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- event_notifier_set_handler(ack_notifier, NULL);
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- event_notifier_cleanup(ack_notifier);
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+ if (ack_event_initialized) {
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+ event_notifier_set_handler(ack_notifier, NULL);
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+ event_notifier_cleanup(ack_notifier);
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+ }
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+
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g_free(sint_route->staged_msg);
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}
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-err_sint_set_notifier:
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- event_notifier_cleanup(&sint_route->sint_set_notifier);
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-err:
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- g_free(sint_route);
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+ g_free(sint_route);
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return NULL;
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}
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@@ -442,6 +471,8 @@ void hyperv_sint_route_ref(HvSintRoute *sint_route)
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void hyperv_sint_route_unref(HvSintRoute *sint_route)
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{
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+ SynICState *synic;
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+
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if (!sint_route) {
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return;
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}
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@@ -452,21 +483,33 @@ void hyperv_sint_route_unref(HvSintRoute *sint_route)
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return;
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}
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- kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state,
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- &sint_route->sint_set_notifier,
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- sint_route->gsi);
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- kvm_irqchip_release_virq(kvm_state, sint_route->gsi);
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+ synic = sint_route->synic;
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+ qemu_mutex_lock(&synic->sint_routes_mutex);
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+ QLIST_REMOVE(sint_route, link);
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+ qemu_mutex_unlock(&synic->sint_routes_mutex);
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+
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+ if (sint_route->gsi) {
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+ kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state,
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+ &sint_route->sint_set_notifier,
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+ sint_route->gsi);
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+ kvm_irqchip_release_virq(kvm_state, sint_route->gsi);
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+ event_notifier_cleanup(&sint_route->sint_set_notifier);
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+ }
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+
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if (sint_route->staged_msg) {
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event_notifier_set_handler(&sint_route->sint_ack_notifier, NULL);
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event_notifier_cleanup(&sint_route->sint_ack_notifier);
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g_free(sint_route->staged_msg);
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}
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- event_notifier_cleanup(&sint_route->sint_set_notifier);
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g_free(sint_route);
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}
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int hyperv_sint_route_set_sint(HvSintRoute *sint_route)
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{
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+ if (!sint_route->gsi) {
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+ return 0;
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+ }
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+
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return event_notifier_set(&sint_route->sint_set_notifier);
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}
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@@ -661,3 +704,246 @@ uint16_t hyperv_hcall_signal_event(uint64_t param, bool fast)
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}
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return HV_STATUS_INVALID_CONNECTION_ID;
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}
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+
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+static HvSynDbgHandler hv_syndbg_handler;
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+static void *hv_syndbg_context;
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+
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+void hyperv_set_syndbg_handler(HvSynDbgHandler handler, void *context)
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+{
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+ assert(!hv_syndbg_handler);
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+ hv_syndbg_handler = handler;
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+ hv_syndbg_context = context;
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+}
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+
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+uint16_t hyperv_hcall_reset_dbg_session(uint64_t outgpa)
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+{
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+ uint16_t ret;
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+ HvSynDbgMsg msg;
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+ struct hyperv_reset_debug_session_output *reset_dbg_session = NULL;
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+ hwaddr len;
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+
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+ if (!hv_syndbg_handler) {
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+ ret = HV_STATUS_INVALID_HYPERCALL_CODE;
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+ goto cleanup;
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+ }
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+
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+ len = sizeof(*reset_dbg_session);
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+ reset_dbg_session = cpu_physical_memory_map(outgpa, &len, 1);
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+ if (!reset_dbg_session || len < sizeof(*reset_dbg_session)) {
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+ ret = HV_STATUS_INSUFFICIENT_MEMORY;
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+ goto cleanup;
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+ }
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+
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+ msg.type = HV_SYNDBG_MSG_CONNECTION_INFO;
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+ ret = hv_syndbg_handler(hv_syndbg_context, &msg);
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+ if (ret) {
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+ goto cleanup;
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+ }
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+
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+ reset_dbg_session->host_ip = msg.u.connection_info.host_ip;
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+ reset_dbg_session->host_port = msg.u.connection_info.host_port;
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+ /* The following fields are only used as validation for KDVM */
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+ memset(&reset_dbg_session->host_mac, 0,
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+ sizeof(reset_dbg_session->host_mac));
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+ reset_dbg_session->target_ip = msg.u.connection_info.host_ip;
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+ reset_dbg_session->target_port = msg.u.connection_info.host_port;
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+ memset(&reset_dbg_session->target_mac, 0,
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+ sizeof(reset_dbg_session->target_mac));
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+cleanup:
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+ if (reset_dbg_session) {
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+ cpu_physical_memory_unmap(reset_dbg_session,
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+ sizeof(*reset_dbg_session), 1, len);
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+ }
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+
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+ return ret;
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+}
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+
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+uint16_t hyperv_hcall_retreive_dbg_data(uint64_t ingpa, uint64_t outgpa,
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+ bool fast)
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+{
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+ uint16_t ret;
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+ struct hyperv_retrieve_debug_data_input *debug_data_in = NULL;
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+ struct hyperv_retrieve_debug_data_output *debug_data_out = NULL;
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+ hwaddr in_len, out_len;
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+ HvSynDbgMsg msg;
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+
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+ if (fast || !hv_syndbg_handler) {
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+ ret = HV_STATUS_INVALID_HYPERCALL_CODE;
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+ goto cleanup;
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+ }
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+
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+ in_len = sizeof(*debug_data_in);
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+ debug_data_in = cpu_physical_memory_map(ingpa, &in_len, 0);
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+ if (!debug_data_in || in_len < sizeof(*debug_data_in)) {
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+ ret = HV_STATUS_INSUFFICIENT_MEMORY;
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+ goto cleanup;
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+ }
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+
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+ out_len = sizeof(*debug_data_out);
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+ debug_data_out = cpu_physical_memory_map(outgpa, &out_len, 1);
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+ if (!debug_data_out || out_len < sizeof(*debug_data_out)) {
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+ ret = HV_STATUS_INSUFFICIENT_MEMORY;
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+ goto cleanup;
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+ }
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+
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+ msg.type = HV_SYNDBG_MSG_RECV;
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+ msg.u.recv.buf_gpa = outgpa + sizeof(*debug_data_out);
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+ msg.u.recv.count = TARGET_PAGE_SIZE - sizeof(*debug_data_out);
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+ msg.u.recv.options = debug_data_in->options;
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+ msg.u.recv.timeout = debug_data_in->timeout;
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+ msg.u.recv.is_raw = true;
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+ ret = hv_syndbg_handler(hv_syndbg_context, &msg);
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+ if (ret == HV_STATUS_NO_DATA) {
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+ debug_data_out->retrieved_count = 0;
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+ debug_data_out->remaining_count = debug_data_in->count;
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+ goto cleanup;
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+ } else if (ret != HV_STATUS_SUCCESS) {
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+ goto cleanup;
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+ }
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+
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+ debug_data_out->retrieved_count = msg.u.recv.retrieved_count;
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+ debug_data_out->remaining_count =
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+ debug_data_in->count - msg.u.recv.retrieved_count;
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+cleanup:
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+ if (debug_data_out) {
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+ cpu_physical_memory_unmap(debug_data_out, sizeof(*debug_data_out), 1,
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+ out_len);
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+ }
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+
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+ if (debug_data_in) {
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+ cpu_physical_memory_unmap(debug_data_in, sizeof(*debug_data_in), 0,
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+ in_len);
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+ }
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+
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+ return ret;
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+}
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+
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+uint16_t hyperv_hcall_post_dbg_data(uint64_t ingpa, uint64_t outgpa, bool fast)
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+{
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+ uint16_t ret;
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+ struct hyperv_post_debug_data_input *post_data_in = NULL;
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+ struct hyperv_post_debug_data_output *post_data_out = NULL;
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+ hwaddr in_len, out_len;
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+ HvSynDbgMsg msg;
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+
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+ if (fast || !hv_syndbg_handler) {
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|
|
+ ret = HV_STATUS_INVALID_HYPERCALL_CODE;
|
|
|
+ goto cleanup;
|
|
|
+ }
|
|
|
+
|
|
|
+ in_len = sizeof(*post_data_in);
|
|
|
+ post_data_in = cpu_physical_memory_map(ingpa, &in_len, 0);
|
|
|
+ if (!post_data_in || in_len < sizeof(*post_data_in)) {
|
|
|
+ ret = HV_STATUS_INSUFFICIENT_MEMORY;
|
|
|
+ goto cleanup;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (post_data_in->count > TARGET_PAGE_SIZE - sizeof(*post_data_in)) {
|
|
|
+ ret = HV_STATUS_INVALID_PARAMETER;
|
|
|
+ goto cleanup;
|
|
|
+ }
|
|
|
+
|
|
|
+ out_len = sizeof(*post_data_out);
|
|
|
+ post_data_out = cpu_physical_memory_map(outgpa, &out_len, 1);
|
|
|
+ if (!post_data_out || out_len < sizeof(*post_data_out)) {
|
|
|
+ ret = HV_STATUS_INSUFFICIENT_MEMORY;
|
|
|
+ goto cleanup;
|
|
|
+ }
|
|
|
+
|
|
|
+ msg.type = HV_SYNDBG_MSG_SEND;
|
|
|
+ msg.u.send.buf_gpa = ingpa + sizeof(*post_data_in);
|
|
|
+ msg.u.send.count = post_data_in->count;
|
|
|
+ msg.u.send.is_raw = true;
|
|
|
+ ret = hv_syndbg_handler(hv_syndbg_context, &msg);
|
|
|
+ if (ret != HV_STATUS_SUCCESS) {
|
|
|
+ goto cleanup;
|
|
|
+ }
|
|
|
+
|
|
|
+ post_data_out->pending_count = msg.u.send.pending_count;
|
|
|
+ ret = post_data_out->pending_count ? HV_STATUS_INSUFFICIENT_BUFFERS :
|
|
|
+ HV_STATUS_SUCCESS;
|
|
|
+cleanup:
|
|
|
+ if (post_data_out) {
|
|
|
+ cpu_physical_memory_unmap(post_data_out,
|
|
|
+ sizeof(*post_data_out), 1, out_len);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (post_data_in) {
|
|
|
+ cpu_physical_memory_unmap(post_data_in,
|
|
|
+ sizeof(*post_data_in), 0, in_len);
|
|
|
+ }
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+uint32_t hyperv_syndbg_send(uint64_t ingpa, uint32_t count)
|
|
|
+{
|
|
|
+ HvSynDbgMsg msg;
|
|
|
+
|
|
|
+ if (!hv_syndbg_handler) {
|
|
|
+ return HV_SYNDBG_STATUS_INVALID;
|
|
|
+ }
|
|
|
+
|
|
|
+ msg.type = HV_SYNDBG_MSG_SEND;
|
|
|
+ msg.u.send.buf_gpa = ingpa;
|
|
|
+ msg.u.send.count = count;
|
|
|
+ msg.u.send.is_raw = false;
|
|
|
+ if (hv_syndbg_handler(hv_syndbg_context, &msg)) {
|
|
|
+ return HV_SYNDBG_STATUS_INVALID;
|
|
|
+ }
|
|
|
+
|
|
|
+ return HV_SYNDBG_STATUS_SEND_SUCCESS;
|
|
|
+}
|
|
|
+
|
|
|
+uint32_t hyperv_syndbg_recv(uint64_t ingpa, uint32_t count)
|
|
|
+{
|
|
|
+ uint16_t ret;
|
|
|
+ HvSynDbgMsg msg;
|
|
|
+
|
|
|
+ if (!hv_syndbg_handler) {
|
|
|
+ return HV_SYNDBG_STATUS_INVALID;
|
|
|
+ }
|
|
|
+
|
|
|
+ msg.type = HV_SYNDBG_MSG_RECV;
|
|
|
+ msg.u.recv.buf_gpa = ingpa;
|
|
|
+ msg.u.recv.count = count;
|
|
|
+ msg.u.recv.options = 0;
|
|
|
+ msg.u.recv.timeout = 0;
|
|
|
+ msg.u.recv.is_raw = false;
|
|
|
+ ret = hv_syndbg_handler(hv_syndbg_context, &msg);
|
|
|
+ if (ret != HV_STATUS_SUCCESS) {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ return HV_SYNDBG_STATUS_SET_SIZE(HV_SYNDBG_STATUS_RECV_SUCCESS,
|
|
|
+ msg.u.recv.retrieved_count);
|
|
|
+}
|
|
|
+
|
|
|
+void hyperv_syndbg_set_pending_page(uint64_t ingpa)
|
|
|
+{
|
|
|
+ HvSynDbgMsg msg;
|
|
|
+
|
|
|
+ if (!hv_syndbg_handler) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ msg.type = HV_SYNDBG_MSG_SET_PENDING_PAGE;
|
|
|
+ msg.u.pending_page.buf_gpa = ingpa;
|
|
|
+ hv_syndbg_handler(hv_syndbg_context, &msg);
|
|
|
+}
|
|
|
+
|
|
|
+uint64_t hyperv_syndbg_query_options(void)
|
|
|
+{
|
|
|
+ HvSynDbgMsg msg;
|
|
|
+
|
|
|
+ if (!hv_syndbg_handler) {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ msg.type = HV_SYNDBG_MSG_QUERY_OPTIONS;
|
|
|
+ if (hv_syndbg_handler(hv_syndbg_context, &msg) != HV_STATUS_SUCCESS) {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ return msg.u.query_options.options;
|
|
|
+}
|